I didn't register for china. We figured we wouldn't use it and my mom has a set of china that I love and will one day get so I couldn't even find anything that matched or comapired to hers. It's totally a personal choice though.
I don't know what kind you are looking for but Michael's has a silver starfish that you can use to make a necklace out of. It is really pretty and would work for a charm for you if that's what you are looking for.